Many scientists believe the red-eyed tree frog developed its vivid scarlet peepers to shock predators into at least briefly questioning their meal choice. These iconic rain-forest amphibians sleep ...

While the bright coloration of this red-eyed tree frog doesn’t make the amphibious creature see red, it does provide an eye-catching display for humans who glimpse it in its rainforest habitat. In ...

Red-eyed tree frogs, Agalychnis callidryas ... in Costa Rica affiliated with STRI and author of the influential 2003 book Developmental Plasticity and Evolution. “The 20th century has been ...